Lack of static lattice distortion in Tb2Ti2O7

被引：14

作者：

Ofer, Oren ^{[1
]}

Keren, Amit

Baines, Chris

机构：

[1] Technion Israel Inst Technol, Phys Dept, IL-32000 Haifa, Israel

[2] Paul Scherrer Inst, Lab Muon Spin Spectr, CH-5232 Villigen, Switzerland

来源：

JOURNAL OF PHYSICS-CONDENSED MATTER | 2007年 / 19卷 / 14期

关键词：

D O I：

10.1088/0953-8984/19/14/145270

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

We investigated the possibility of temperature-dependent lattice distortions in the pyrochlore compound Tb2Ti2O7 by measuring the internal magnetic field distribution, using muon spin resonance, and comparing it to the susceptibility. The measurements are done at temperatures as low as 70 mK and external fields up to 6 kG. We find that the evolution of the width of the field distribution can be explained by spin susceptibility only, thus ruling out a temperature-dependent hyperfine coupling. We conclude that lattice deformations are absent in Tb2Ti2O7.

引用

页数：6

共 17 条

[1] Local lattice disorder in the geometrically frustrated spin-glass pyrochlore Y2Mo2O7 [J].

Booth, CH ;

Gardner, JS ;

Kwei, GH ;

Heffner, RH ;

Bridges, F ;

Subramanian, MA .

PHYSICAL REVIEW B, 2000, 62 (02) :R755-R758

[2] Statics and dynamics of incommensurate spin order in a geometrically frustrated antiferromagnet CdCr2O4 -: art. no. 247204 [J].

Chung, JH ;

Matsuda, M ;

Lee, SH ;

Kakurai, K ;

Ueda, H ;

Sato, TJ ;

Takagi, H ;

Hong, KP ;

Park, S .

PHYSICAL REVIEW LETTERS, 2005, 95 (24)

[3] Cooperative paramagnetism in the geometrically frustrated pyrochlore antiferromagnet Tb2Ti2O7 [J].

Gardner, JS ;

Dunsiger, SR ;

Gaulin, BD ;

Gingras, MJP ;

Greedan, JE ;

Kiefl, RF ;

Lumsden, MD ;

MacFarlane, WA ;

Raju, NP ;

Sonier, JE ;

Swainson, I ;

Tun, Z .

PHYSICAL REVIEW LETTERS, 1999, 82 (05) :1012-1015

[4] Dynamic properties of a diluted pyrochlore cooperative paramagnet (TbpY1-p)2Ti2O7 -: art. no. 107204 [J].

Keren, A ;

Gardner, JS ;

Ehlers, G ;

Fukaya, A ;

Segal, E ;

Uemura, YJ .

PHYSICAL REVIEW LETTERS, 2004, 92 (10) :107204-1

[5] Frustration driven lattice distortion:: an NMR investigation of Y2Mo2O7 -: art. no. 177201 [J].

Keren, A ;

Gardner, JS .

PHYSICAL REVIEW LETTERS, 2001, 87 (17) :177201-177201

[6] Local spin resonance and spin-Peierls-like phase transition in a geometrically frustrated antiferromagnet [J].

Lee, SH ;

Broholm, C ;

Kim, TH ;

Ratcliff, W ;

Cheong, SW .

PHYSICAL REVIEW LETTERS, 2000, 84 (16) :3718-3721

[7] Low temperature magnetic properties of the geometrically frustrated pyrochlores Tb2Ti2O7, Gd2Ti2O7, and Gd2Sn2O7 [J].

Luo, G ;

Hess, ST ;

Corruccini, LR .

PHYSICS LETTERS A, 2001, 291 (4-5) :306-310

[8] Pressure and field induced magnetic order in the spin liquid Tb2Ti2O7 as studied by single crystal neutron diffraction -: art. no. 187204 [J].

Mirebeau, I ;

Goncharenko, IN ;

Dhalenne, G ;

Revcolevschi, A .

PHYSICAL REVIEW LETTERS, 2004, 93 (18) :187204-1

[9] Pressure-induced crystallization of a spin liquid [J].

Mirebeau, I ;

Goncharenko, IN ;

Cadavez-Pares, P ;

Bramwell, ST ;

Gingras, MJP ;

Gardner, JS .

NATURE, 2002, 420 (6911) :54-57

[10] Magnetic-field induced spin-Peierls instability in strongly frustrated quantum spin lattices [J].

Richter, J ;

Derzhko, O ;

Schulenburg, J .

PHYSICAL REVIEW LETTERS, 2004, 93 (10) :107206-1

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